After collecting these items, return the way we came to the second floor. Head towards the other door where we climbed up the ladder earlier, and go up the stairs.
After coming up, kill a wave of enemies. There is a resource chest next to the stairs ahead.
The door on the left staircase is the one we couldn't open earlier. Ahead is the door that requires a theater ticket.
After opening the door and entering, there is a book [Mystery of the Virgin Mary #10 Star Chart] on the left side of the house.
